Configuring Icmp; Figure 59 Remote Mgmt > Dns; Table 40 Remote Mgmt > Dns - ZyXEL Communications P-791R V2 - V3.40 User Manual

Chapter 11 Remote Management Configuration
See Section 11.1 on page 119
MGMT > DNS. The screen appears as shown. Use this screen to set from which IP address
the ZyXEL Device will accept DNS queries and on which interface it can send them your
ZyXEL Device's DNS settings.
Figure 59 Remote MGMT > DNS
The following table describes the labels in this screen.
Table 40 Remote MGMT > DNS
LABEL
Port
Access Status
Secured Client IP A secured client is a "trusted" computer that is allowed to send DNS queries to the
Apply
Cancel

11.8 Configuring ICMP

Use this screen to control how the ZyXEL Device responds to other types of requests. Click
Advanced > Remote MGMT > ICMP. The screen appears as shown.
If an outside user attempts to probe an unsupported port on your ZyXEL Device, an ICMP
response packet is automatically returned. This allows the outside user to know the ZyXEL
Device exists. Your ZyXEL Device supports anti-probing, which prevents the ICMP response
packet from being sent. This keeps outsiders from discovering your ZyXEL Device when
unsupported ports are probed.
126
for background information. Click Advanced > Remote
DESCRIPTION
You may change the server port number for a service if needed, however you must
use the same port number in order to use that service for remote management.
Select the interface(s) through which a computer may send DNS queries to the
ZyXEL Device.
ZyXEL Device.
Select All to allow any computer to send DNS queries to the ZyXEL Device.
Choose Selected to just allow the computer with the IP address that you specify to
send DNS queries to the ZyXEL Device.
Click Apply to save your customized settings and exit this screen.
Click Cancel to begin configuring this screen afresh.
P-791R v2 User's Guide